4+X/X=X
4+X=X*X
when the answer fits the equation, the answer is correct
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If you’re trying to find f(-1) it would be -20
$0.66 / 0.3% = 2.2
Check:
2.2 * 0.3 = 0.66
Hope this helps!
10% off of 199.99 is 179.99
100% - 10% = 90% The 90% is how much you are going to pay.
90% into decimal form is 0.9
So you can do 199.99 x 0.9 = $179.99
